docs: update the email address

README.md

@@ -84,7 +84,7 @@ Please check [here](https://github.com/nunchaku-tech/nunchaku/issues/431) for th
 
 ## Contact Us
 
-For enterprises interested in adopting SVDQuant or Nunchaku, including technical consulting, sponsorship opportunities, or partnership inquiries, please contact us at muyangli@mit.edu.
+For enterprises interested in adopting SVDQuant or Nunchaku, including technical consulting, sponsorship opportunities, or partnership inquiries, please contact us at muyangli@nunchaku.tech.
 
 ## Related Projects
 

README_ZH.md

@@ -82,7 +82,7 @@ https://github.com/user-attachments/assets/fdd4ab68-6489-4c65-8768-259bd866e8f8
 
 ## 联系我们
 
-如有企业合作、技术咨询、赞助或合作意向，请联系 muyangli@mit.edu。
+如有企业合作、技术咨询、赞助或合作意向，请联系 muyangli@nunchaku.tech。
 
 ## 相关项目